SUMMARY -Botryoid cyst, a rare type of odontogenic cyst, is usually considered a multilocular variant of lateral periodontal cyst. It was fi rst described in 1973, and up to the present less than a hundred cases have been reported in the literature. Botryoid cysts are characterized by a multilocular histologic fi nding and a higher risk of recurrence than lateral periodontal cysts. In this article, we present a case of botryoid cyst from our clinical practice, accompanied by literature review of previous cases reported in the literature so far. Study results showed that botryoid cysts mostly aff ected population in their fi fties, with a slight female (53.5%) predominance over males (46.5%). Th e mandible was the most frequently aff ected region, accounting for 70 (83.3%) cases. Maxilla was only sporadically aff ected accounting for 14 (16.7%) cases. Radiographic appearance of botryoid cysts can be multilocular or unilocular. It is concluded that the recurrence rate is relatively high (30.1%), therefore long term follow up is needed.

Glandular odontogenic cyst (GOC), an unusual multilocular cystic lesion of jaws exhibiting the features of both botryoid odontogenic cyst and mucoepidermoid tumor has been reported recently as a new entity with uncertain histogenesis. The World Health Organization named GOC as an independent pathologic entity and classified it as a developmental odontogenic epithelial cyst. We report an additional case, describe its clinicopathologic features, and discuss the similarity to the central mucoepidermoid carcinoma. © 1997 John Wiley & Sons, Inc. Head Neck 19: 227–231, 1997.

Odontomas as a group are the most common odontogenic neoplasms. They are mixed lesions containing fully formatted dental tissues, both epithelial and mesenchymal, and are usually found during a routine radiographic examination or as a factor in noneruption. Odontomas can be divided into two types: the complex and the compound odontoma. Both types are composed of enamel, dentin, cementum and pulp tissues, but in complex odontomas the tissues are arranged in a haphazard fashion with no discernible dental structures, whereas in compound odontomas the dental tissues exist in a more regular pattern so that the lesion consists of tooth-like structures. We report a case of a 23-year-old man with a large complex odontoma involving the left maxilla and maxillary sinus with clinical, radiographic and histological findings. Because of the size of the mass and its clinical course, benign neoplasms were considered in the differential diagnosis. Surgery was the treatment of choice, and recurrence of the lesion is not expected.

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